Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10989543 | Controller | — | 2021-04-27 |
| 5859584 | Combined data and power transmission | Michael Counsell | 1999-01-12 |
| 5655461 | Robbery deterrent system for convenience stores | — | 1997-08-12 |
| 5502760 | Telephone-line dedicating apparatus | Nobuaki Yokoyama | 1996-03-26 |
| 5396544 | Telephone answering system | Kazuyoshi Imazeki, Nobuaki Yokoyama | 1995-03-07 |